Birds have _____ to keep them dry and warm.
feathers
The _____ gives living things shelter, food, water and space.
environment
_____ comes from trees. It is used to make furniture.
Wood
A force is a _____ or a _____.
push, pull
A _____ is ahuge rock with a rough surface.
boulder
Polar bears have _____ to keep them warm.
fur
We can find tiny insects _____.
under rocks
_____ comes from the thick fur of sheep.
Wool
The ball _____ moving when we catch it.
stops
Marble and granite are both _____.
T or F All animals have the same body parts.
False
A _____ is a dry place covered in sand or rocks.
desert
_____ is made from a type of oil.
Plastic
The ball changes _____ when we hit it.
direction
Sandstone and limestone are _____.
dull
To _____ is to have young.
reproduce
A _____ is cold and windy because it is covered with ice and snow.
polar habitat
Glass is made from _____.
sand
We can use force to change the _____ of an object.
shape
We need _____ to extract heavy rocks.
machines
_____ is the young of an animal.
Offspring
_____ study how plants and animals live in their environment.
Ecologists
When some metals touch water or air for a long time, they begin to _____.
rust
_____ objects are not moving.
Stationary
We can extract rocks from different places such as ______, ______ and ______.